(a) parallel to the y-axis.
(b)
3.
parallel to the x-axis.
The straight line y=x+2 cuts the circle
x²+ y² = 20 at A and B.
(a)
Determine the coordinates of A and B.
(b) Determine the length of the chord AB.
Determine the coordinates of M, the
midpoint of the chord AB.
(c)
(d)
(e)
(f)
Show that OM LAB if O is the origin.
Determine the equations of the tangents
to the circle at A and B.
Determine the coordinates of C, the point
of intersection of the tangents found in (e).
A
MO
Ο
B
x+2
X
